A proton moving along the x axis has an initial velocity of 4.0 × 106 m/s and a constant acceleration of 6.0 × 1012 m/s2. What is the velocity of the proton after it has traveled a distance of 80 cm?
A. 5.1 × 106 m/s
B. 6.3 × 106 m/s
C. 4.8 × 106 m/s
D. 3.9 × 106 m/s
E. 2.9 × 106 m/s
Answer: A
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